<!DOCTYPE html>
<html>
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
    <style type="text/css">
        body, html,#allmap {width: 100%;height: 100%;overflow: hidden;margin:0;font-family:"微软雅黑";}
    </style>
    <script src="https://mapopen.bj.bcebos.com/github/BMapGLLib/TrackAnimation/src/TrackAnimation.min.js"></script>
    <script type="text/javascript" src="https://api.map.baidu.com/api?type=webgl&v=1.0&ak=93tCnBzBVzxeRLtRo8roSAtbNrKuzyKt"></script>
    <title>视角动画</title>
</head>
<body>
<div id="allmap"></div>
</body>
</html>
<script type="text/javascript">

    var bmap = new BMapGL.Map("allmap");
    bmap.centerAndZoom(new BMapGL.Point({$first.lng}, {$first.lat}), 17);
    bmap.enableScrollWheelZoom(true);
    var path = {$data};
    var point = [];
    for (var i = 0; i < path.length; i++) {
        point.push(new BMapGL.Point(path[i].lng, path[i].lat));
    }
    var pl = new BMapGL.Polyline(point);
    setTimeout('start()', 3000);
    function start () {
        trackAni = new BMapGLLib.TrackAnimation(bmap, pl, {
            overallView: true,
            tilt: 30,
            duration: 20000,
            delay: 300
        });
        trackAni.start();
    }
</script>
